1251325161244 has 12 divisors (see below), whose sum is σ = 2243229252768. Its totient is φ = 610402517600.

The previous prime is 1251325161227. The next prime is 1251325161269. The reversal of 1251325161244 is 4421615231521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3815015572 + ... + 3815015899.

It is an arithmetic number, because the mean of its divisors is an integer number (186935771064).

Almost surely, 2^{1251325161244} is an apocalyptic number.

It is an amenable number.

1251325161244 is a deficient number, since it is larger than the sum of its proper divisors (991904091524).

1251325161244 is a wasteful number, since it uses less digits than its factorization.

1251325161244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630031516 (or 7630031514 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The spelling of 1251325161244 in words is "one trillion, two hundred fifty-one billion, three hundred twenty-five million, one hundred sixty-one thousand, two hundred forty-four".